Reinforced concrete construction.



Nn. 865,490. PATENTE) SEPT. 1o, my. G. M. GRAHAM.

REIN FRCBD GONCRETB GONSTRBGTQN.

Awmomlon russ Dnc. 21. 190e.

a sums-saisi* 4.

110.365,49@ PATBNTED SEPT. 1o, 19e?.

. G. M. GRHAE. REINFORCBD CUNGRETE GOSTRUCTION.

APPLICATION FILED BE@i 2?, IQD.

8 SHEETS-SHEET 5.

No. 865,490. PATBNTBD SEPT. 1o, 19o?` s. M. GRAHAM.

RBINFORGBD GNGRBTE CSTBUCTION.

APPLIOATION FILED BBQx 2L 1966.

No. 865,490. PATENTED SEPT. 1G, L90?. G. M. GRAHAM.

RBINPVORCED CONCRETE GGNSTRUGTION.

APPLIGATION YILED DEU. 2, 1906.

8 SHEETSBHBET 7.

Amr

PATBNTED SEPT; '1a. man

G. M, GRAHAM. RBINFURGBD CONCRETE GGSTRQGNQN.

Assioxou, oi' .onu-:or ANo mesma Merom A REINFORCED CONGRETE CONSTRUCTION. i L

Specification of Letters Patent.

Patented Sept. 1Q, 1907.

Auulicaton filed December 27, 190B. Serial No. 349,684.

Tolall whmn .il may ront-Pm:

Be it known thatl. GEoRoI- \l. GRAHAM, a citizen o the United States o America. and a resident of tftimgo, in the county o ("ook and State o1' Illinois` have ini/ene 5 -ed certain new arid useful Improvements in Reinforced Cenerete'Construttion, of which the folloiw'ng is a specitication. {This invention relatesA to that type of building and other slrueuiee in which a. tubular reinforce fra-me of l0 metal is arranged within the body or mass of eoneretleoafford added strength thereto: and the present. implore -ments has for its various objects-*Ato provide a simple and efficient structural arrangement and combination o parte adapted to afford a. skeletonreiuforee ironie of a.

light, rigid and economical construction; to provide inv `c0nuectiou with such skeleton frame a simple and efficient mee ne for receing the concrete to form a 4wall or Vlilte'part'o the completed structure', to prode in convnection with Such skeleton frame a Vcheep'antl eflicient means for forn'iing a reinforced concrete otir or like horizontal *part of a completed structure,V oi great strength and either solid or hollowas desired, and genorally to provide detail structural features and combinations of parte whereby reinorcefd vconcrete structure oi a strong arid durable nature is attained in e, ready and economical manner, all as will hereinafter more fully appear. f y

in' the accompanying drawings .-Figure l, is a general elevatin'illuetrating the arrangement ofthe pres= i ont tubixlarzslteletonframe for the front of avbuilding. Fig 2`,`i a detail pian View of the present skeleton frame as arranged iol the or or other horizontal portion o a. Ybuilding. Fig. 3, is a detail side elevation of said frame as arranged oifafvallV partition or like vertical portion J of thV lfiii1liliiig.` Figf4, is an enlarged detail section on i linemrif lfiig AFig. 5, is an enlarged detail horizontal sot-tionen line 5r Figftl, illustratingthe nonnettion of a. arrangement o horizontal gil-ders to a vertical prost of the building Fig. 6, is a detail side 40 televation of theeani'e. Fig, 7. is a detail sectional plan 'y or' the. iloiiigiiigfame shown in Fig. 2. with the wire ellende oriveli which forms a skeleton Center for the frame, in place thereon. Fig. 8. is a detail plan vieu' of a Cross-fitting used in Vconnecting up the pressent tuimler ifK skeleton hernieA Fig. 9, a detail side elevation oi the Aeamo. HFigefl(land ll. are diagram .viene in perspective, Ailluetztiting the om nner o Winding the wires upon the' Skelotqut'rirme. to `forni n web or center upon one or upon the two opposite suriname of the ita-me, to support 'the latliing aswell as the unset mass of r-oncrote used inY (the. huilding volfseration. l`g. l2. is .is .ieiv Similar to Fig. 7 of a. modified form-501' wire winding by which the frame center iaort'ned. Fig. i3. is ein enlfirgetl detail plan View of one Corner of the rtxtnand judiog :noten in Fig. l2. Fig. H. ie a detail vortifal section illus 5E trating a portion of the skeleton frame. Wire center. and lutlii1ig,tlie parte lit-ing shown in tht-ir initial position priorto the imposition of the uniss of concrete to form al loor or like horizont-nl part of the etruetflre. Fig, l5. is

a Similar View showing the relative position of the parte vli() with the moss ofltonvrege in piave, and illustrating that forni of llnpresent invention' in which the floor ete, is

of a Solid conrfrele formation. Fig. l@ is a view similar to Fig. l5. illuetroting that orm of tile present invention in which thoytloor oto. `is of a hollow concrete Construttion. Tige. 1T andlS. are whip-anion views to Figs, l5 and 1G, and illustrative or' modied arrangement of parte.

Similar minier-.ils oreerenee indeale like parte in the Seterul views,

Referring to the drawings. l"represents a series of tubulor volnlnne or posts. which in u building construetion are Supported on the usual formulation Walls or Sille. and of a height eqn-nl to that required in the building and uliit'h muy L'onsiet of single lengths 0i wrought-ITI? niet-.il tubingV or two or more sections of lee'eer lengths and secured together end to end h3' the fittings 2. hereinafter fleet-liberi. Y

3- are a series of hori/:ontal tuhulnrr'girders orhemne arranged in right angle relation with their meeting ends secured toether and to an adjacent column or poet lv by u 'fitting 2. vbefore referred to. Four of sut-l1 gir-dere setured together and supported ne tiliove descrilixed. with the accessories hereinafter described. constitutes the marginal frame for aeingle initial unit o1' the skeleton reinforce [rame of a building or structure: additional unit.kl utili/ging; in their formntionone of the grders oi the 'unit to u'llirh unit an additional unit is Conner-101|, mul ne illurftraled more partit-ulurly in Fig. l. 2 3, T und l2.' Window. door und like openirige are formed as required in Suid unite by the provision of intermedi-.ile lulauliu' poete or rails iY and headere 5 as illustrated in Fig. l.

The .fittings 2 above referred to ne connecting the t-olnnns l. zuid gil-ders together. may he of any usual and Suitable construction. the type oi fittings'illus- 'timed in Figs. 1. 6. 8. 9 and 13. are however prelerred as affording a very convenient economic-.il and enlistnntial connection for coupling the parte together, Such preferred type oi fittings constitute the subject. nnut er of my companion application for Letters Patent .Serial Xulnlier 349,583 iled oi even date he1'ewitli,and nre of the following conetruetion in detailzcl G. ie the main bodyoi llie fitting formed with a cylindrital llore of :i diameter coi'i'esponfling with the ex- 105 tei-nal diameter oi the tubular edumn l or like member upon which the fitting is applied; and such niain hotly is oleo itu-med with nu opening along its length and with ears 7 at` the 11i-argl ns of said opening for the mcmbcrs by anglc fittings 2prcfcrablyof the type herepassage of a clamping boli` 8 by which the diameter of the main body ti. is contracted to firmly and securely clamp such main body of'thc fitting upon the column or like member to which it applied.

l9 are one or more lateral branches integrally formed on the main body of the fitting. and in the required angular relation thereto. and depending upon whether an ell., tee. or cross-form oi fitting is required. Such lateral blanches are preferably of a stirrup or U shape. as shown. 'to admit of the ready intrmluction of the ends of` the tubular girdera 3, into place therein.V and it in preferred that a branch of the aforesaid opening in the main body l. be formed centrally in thc semi-circular bottoni` wall of one or more of said lateral branches to afford 'an additional meansl for clamping and holding the end or endsof said girders in place. i

10. are bolts passing transversely through the main body of the fitting and through orifices in the column l. to additionally hold the parts in proper relative position. y t

1l. are like bolts passing transversely throughJ the Bide walls of the lateral branches 9. and through the ends oi' the gil-ders for a like purpose to that above st.a.te l` One part of thc present invention consists in thc pro\' vision .in connection with arcctangulur frame formed o1' scr-tions of round tuling scoort-d togethcr by fittings as before sct forth, of a skclfton wirc centering or wc|b hing 13.*thercfor. and which is formed by continuous wrappings of a single wire around said frame in spaced relation and in crossed or opposite directions. to afford .an open web like center for the frame, and to which is attached in manner hereinafter described 'any -usual and suitable form of sheet lathing to receive the mass of concrete which forms a floor or other portion cf the structu're. "Wtli thc continuous wrapping above .sit forth, each individua-l strand thereof can bebrought to a Common and uniform tension, to bear in an even and uniform manner the normalI stress or load imposed on the frame as awhole, 'andthus afford very strong Structure with a minimum amount of mot-al. ln the preferred form of auch wire centi-r the diff crcnt strands thereof are formed by winding wire ot' thc proper lcngth v 45 `round and around the pairs of opposed parallel 'membcrs comprising the skeleton frame aforesaid. and as illlfustrated in. Figs. 4. 7.,]6, 17 and A18. u ith thc rcsult that a Wire web or center is provided on both surfaces of the skeleton-frame; the circular form of said frame members permitting the wire strands to be tensioncd to the proper degree in aready and effective manner. The scopo'of this part of the present invention however" involves the arrangement of a single wire center or web on one side or surface of the Vrikeleton frame aforesaid, and with a view to inert the requirements forV a thin floor. roof or like-part of a building structure; and such construction is attained by the special manner of Winding a. number of skeleton frames at one time, as hereinafter described.

ln the preferred form oi thc prcscnt invention the marginal frame oi round tubing is connected togcthcr by fittings, and provided with tubular bracing mcnibets l5. arranged diagonally at .the respectivo corni-rs` of said frame.' ,and connected to the tubular frame lofore dcscribi-d, und as sct forth in detail in my companion application Sori-al No. 349,683: the parts; so combincd barc adapted to cffoctuallyrcsist the grcat inward sti-css upon thiframc mcmbers by theaforesaid wire ci-ntcr and tho floor or other normal load imposcd thcrcbn.

Anotlu-r part of thc prt-sont invention consists in making thc tubular diagonal brace members l5. aforesaid of a ulnallcr diamttcr than the fmmc members aforc said. and arranging said bracc members in non central relation with thc main frame' menlhcrsyas shown in Fig. 4. and with a View to prt-rent any intcrfcrcncil of said braccs 'with thc dishcd forni that is imposed on the wire ccntcr carried by the nun'ginal frame aforcsaid.

Anothcr part of thiprvscnt invcntion consists in the provision in connection with thc tubular marginal frame and its wire wcb onci-ntcr as hcrctofurc dcscribcd, of continuous diagonal windings lt. of wire adapted to embracc two or more of the frame units and tie together" thc 'various parts tht-rcot' ina manncr to previ-nt an outward buckling of the frame mcnibcrs.

under the normal loads imposed thereon in actual usc.

Another part of the present invention consista in the combination with a series of tubular skeleton frame units arranged in angular relation. of a system of winding the wirc which forms thcv 'centers or webs of such scrics of skclcton units, and whereby such .series of units are connected together in a strong and substantial manncr. Such system of winding is illustrated diagram yicws. Figs. l0 and ll: thc one figure illustrating a winding made in one direction. while the other figure illustrates-a windingY made in the rerersc direction. In actual use either of said windings may be employed singly to form the aforesaid skeleton centers for the series of skcleton flame units, or they may be combincd to afford vcry substantial horizontal centcrs, containing doublc the amount of wire strands contained in thc vertical centers of a structure so formed. or vice versa. The course of a single winding of wire to encompass two horizontalseries of units and one vertical upil, is shown in saidfdiagrams. ith arrows toindicatethc circuitous route taken by the wire winding from and back toa common stai'ting point. with thc directions in which the loops around the horizontal mcmbcrs of the structure are malle. ln detail. the wire starting from a point 13 loops` around an upper horizontal tubular member 3*; thence do nwardly to loop around a'lowct' horizontal tubular member .&"': thcncc horizontally 1with a loop embracing thc intermediate lower horizontal tubular member 3c 'and horizontally to and halfway around another lower horizontal tubular member 3"; thc wire thon returns horizontally to and around thil aforcsaid intormediate horizontal member 3", andhorizontally toand around the aforesaid horizontal in'ombcr 3; thence vertically to and around the aforesaid horizontal member 3"; thence horizontally with a' loop embracing tbc intermediate upper horizontal mcmbcr 3. and horizontally tn and halfway around anothcr oppor horizontal mcniborf; theiwire then returns' horizontally to and around the intermediate horizontal mcmbci Il", and horizontally to and around thc aforesaid borizontal member 3 to the starting point 13" abortI dcscribed, for a fresh cycle of the winding operations tnus described and until the cntirc surfaces of thc scctionsor units are'covred' with discontinuous win-1.)- pingof wire,k

In one' form of the'presont construction the Hklcton marginal ramo will ycomprise pairs of `tubulzir sections `1'7 'and' 1S varranged side'by sido in a. horizontal plano to contitutc the horizontal girdcrs of such skeicton ironic, Such tubular scctionsarecrried bysinrglogmultiple fittings 2" at the adjoining ends thereof; as illustrated' in Fig. 5; such arrangement affords a veriV strong' and compact construction A-or with'tonding the otros? iinposed upon the floors yof many classes o buildings.K Whore still groot-c1; trengthin desired', a tliird tubular section lili is rranged at the side of thealoresnid inintlar sections 'dndnin n' 'vertical plano therewith, as illustrated in 6; and in such caso, scid tubular section 1Q will' b'econnected attV ch end to ayertical cgilnxfnni or poot 1', by` an indivihua. fitting o tho'orn hereto fo're described.

The rnuitiplelilting 2"v boro referred to constituts' a portion'oftlie snbject nntter o my companion dppli-I catonSerinilNnrnbcr 349,683 filed of even datehercwith, and noclagiin to such fittingr is madri intho' present npplic'ation.

20 and '21',ro shoots of perforated lathing of lnetal or'o'th'er matoril, andrpyrfo'ratod or rcticulated in any usual 'and 'suiiabio m'nnergsuch latlliixgsheets gre uppoftod a (instance oway from tile .centers yvcbs i3 of tho slreloton framobelore, ds'dribd, by any usual means, as' for; instr'rce tliegsero Vabort ons'A o olid concret-o :ind f limitcd thicknessgorthe seriell.

of short and long ousponsion'links 2v2 and 23, shown in Fig. 16, whereby. upperfand lo'wrllatiiing shoots 20 and 21 'ngc mpoyd 120;,ormwaflooro; the like, oi 'an cxtendedf-thiclrns and having a hollowintr-:rior iorrnn i ng n dead qirfspaco forth@ prventionbftlie n a iioor'o like horizontalfportion' o a building",l is lippliod with Aits: upper surfac 1horgontillgas iiluotrtod inligs, 15, 1 6',l and 118. I Invsneli construction Yhe perhv lortodlthing ,20, will have a'lhori'nontaipo'oiton in tile finished iloorf etc, and to anch end will brive` an initially upward dashed im, find Sufeflinfsllch" 'dished forni to thc VWire web or center 1?', whi'lothonme is in'itS initially 'dat condition as rst formed, and as lillustrated in Figs. lnnfl, lf Priorit thenpfllication of the oi concreto tlie trborcenter Llfis drawn dovra n'tothe re'qiiireddish shape by Strona 'exerted the' upward diaria rmoved from the' lashing Sheet 2o.

e? of sound, gtc'ft' the' .serien ,o f stapler; 25 and nlzorrn'cd` sito strips of wood 26int/o which saidv litoralesnroV dri-'renl 4lnclmglng saidv frame Vund center.

.40.' in alanlng,

and thc samc brought to ilu flut condition illustratori 55 in Figs. l5. i6, and 1S.

Having thus fully dcscribl-d my mill inwm i` n wlmi l claim as now and desire to occur-c by l.l:-r= laum isz- 1,Y in n building, a rectangular margin-.xl l'mmw xmmvd 'y0 of round tubing, n continuons wrapping: nf wirr ouml around timoh-cular pcriplrcry `ol lilo inning tu form a nkvlcton ccntcr 11nd formed ,of a single length of wirc. und n mass of concreto lnclosing smid Immo nud ccnl-m'.

In urbulldlngrectangular marginal from@ formi-d 'i5 of round tubing. coulnuou` wrnppngs nl' wir@ wound nround tbc `circular pcripbery of ille tubing ln right-:ingle relation to fol-1n a skclclon centvlr ind tnrmcd of n singin length or wirr, nnd'n moss of concrete inclusion mill flnmv and center.

S. In n building. a. rectangular marginal frame forum] of round tubing. n continuous wrnppin; of wirr` wound around tbv circular p'crlp'hor'y of thc tubing to form n sknloton nontcr. and furmcd of n single length uf wlrc. n mass of concreti" incloslng said frame and center, ille con 85 tcrhnvlng n clislwd form in tbc concrete mass. v 4. 'ln'a building. n rectangular marginal tramo formcrl of round tubing. a continuous wrapping of wirc wound around'lthc circular pcrlplwry of thc tubing to form 'n iskleton center and formcd'bf a single length ofwlrv. n 90' snpplm'entary dingon'al winding of Wire on,sa1d marginal frame and forming n portion of thc confor, and :i ma nl' lconcrete incloslng saidxframo and ccntcr.

V5. In abuldlng. arectangular marginal frdmc formml of 'round tubing, con rlnnous :trappings of nirc. wound 9.5 nronnd thc circular periphery of tbc tubing in righi-singin rclntlon to form a skeleton center and formed of n singin 'ln-ngth of wire, n supplementary diagonal winding lof wirfA on said marginal' frame und forming a portion of said con tcl' and a mass pf concreto` lnclosinglsuld' lframe andere er. 100

; .6. In a. building; a rectangular marglnalframe fox-mcd nl round tubing. a continuous wrapping of wir# wound around tbe circular periphery of the .tubing to form n skeleton center-and formed of a lsingle length of niirc. sup- ;:lementary diagonal windings of wlrc iii rin-llt anule' r-ln tion onra'ld marginal frame and forming-a portion of thc center, and a miles ofconcrcte lncloslng said iirnnw' and center.

7. `In n building, n, rectangular marginal frame 'formed of round tubing, continuous4 njrupplngs of wir@ wound 110. l

ground the circular periphery o! the tubing in rigbt-lrnglc relation to form a skeleton center and formed of a single.

length 4of Wlx'c,l supplementary diagonal windings of wrc in right angle l'la'tlou on s'ald marginal tramo :md for-mln: n portion of the center, and mass of conci-ctc inl-losing 1)-5 said, fijame and center.

3, Ain a. building. n -recmnzulnr marginal immo formal ofrondtubing md prorldcd with diagonal brui-cs ol" round tbinj at its corncrs. a Vcontiuumml wrapping of Wire Wound around thc cli-cular periphery o't thcframrtublng to form 1n skeleton center" and forrncd of n singin length of wire, and, a mass of concreto incloslng sa ld frame and center.

l). In u building. a rectangular marginal' frmnc foi-mcd of round tubing and provided with dlligonal braces of round tubing at ltseorncrs, continuous wrapplngs nl wil-c vWound around thc circular pcrnbery or tile traino tubing.

ln right angle relation toV for'm a skeleton cantor and Aformed ol a singled'engh of wire, and a mass of concrcte rectangular marginal frame formed of round tubing and provided with diagonal bracci-s of. roundtnblng at, .ltsA corners, a ontlnnousvwrapplng of wire Ywound around the circular pmlplwry nl thv ramv tubing to forro n skeleton conter und forruvd Yof s slnglc length ofnrire, and a moss of concrete lnclosing `would tramo x and center, tbe cgxitcrlmvlng vn dis-bed form in thv mass of concrete. Y

ill. v.ln a building.A a rcctmlgular` mnrpzlnnl frame formed of round trilling und provldcd with diagonal braces of gnnnd'tnblng at ltsv rumors, n contlnunns wrapping u! wre ill wound around thtl t'irt'ular periphery of the frame tubing' to form a skeleton router and formed ot a single length of wirr. a supplementary tlineonal winding of wire on said marginal trantt' und fortuin.;y :t portion of the-center. anll a mass ot concrete int'losing .said i'ralno and conter.

l2. ln a building. u rtrla uular marginal t'ratnr l'ormt'd of round tubin..r and provided witlt diagonal braces` ot' mund tubing at itsl corners. rouliuuous .Mund tht circular periphery of anglo, relatitn to iorln n single length ot wire. supplrntentary diagonal winding.: of wire in right anule relation on salti mara-inni traine and forming;l a portion of tho renter. anda mass of concreto inclosing --znitl traine anti conter.

lil. ln a building'. a rtttanuular niareiual fratuo formed ot' round tubing and provided with diagonal braces of round tubing.: at itsl curio-rs, said brat-os havin-1 a smaller diameter than thtI t'rauttultiu"I4 and .arranged in nont-rutral relation thereto. n conriuuoux wrapping"V ot' wit'o wound around thtI circular periphery of thtfratnt tubin,r to torni a skeleton center anti formed of a single length of wirt'.

l Itlrt.

li. in a building. a

wrappiuns of wire tht` t'ralut tubitnt' `skeleton renter and up: :iti

rectangular marginal tramo t'orinrd ot" round tubing; and provided with diagonal braces of round rubin,"r at its corner.\'. said braces haring a smaller diameter Iban the frame tubingl and arranged in ynontoutral relation tht-reto. continuous wrappings of wirtwound around the circular periphery of the frame tubinu in riant-angle relation to form a skeleton centen. anti fortneti of a single length of wire. anti a mass of concrete intzlouinrr said frame and center.

13. In a building. a rectangular marginal frame fornirti of round tubing and provided with diagonal braces of rountt tubing.r at its corners. said-braces havin: a smaller diameter than the franietubing and arranged in nontt .itt't|l relation thereto. a wrappingv ot' wire wound on sain frame to form a lskeleton center and formed of a single length ot' wire` and a musi: of concrete inclosinr: said frame and center. the center ha ringr a (lished torni in the mass of (f'llll'l`tll.

iti. In a building. a rectangular marginal frame formed ol round tubiniua lskeleton renter therefor formed by a rontituums wrapping!` of wire around the circular periph t r of the traine tubing. and formed of a single length ot wire perforated lathing carried by said center. and a mass ot foncrete intrlosing said t'rame and center. y

iT. In a buildinn'. a rectangular marginal frame formed of round tubing". a skeleton center therefor formed by continuous wrappiutts ot' wire around the circular periphery of the trame tubing in right anale relaLn anti formed of a single length of wire. perforated lathlng carried by .said conter. and a ninas of concrete it'tclosim..r said frame anti center.

is. in a building. a rectangular marginal frame formed of rountl tubing. a .skeleton center therefor formedby a continuous wrapping' o'f wire around the cir-cular periphery of the fratne tubingl and formed of a single length of wirt perforated lathini.: carried by said center-.and a mass ot' concrete inclosinn` said frame and center. thecenter barium a tlished form in the concrete mass.

it. in a building. a rectangular marginal frame formed of round tubing. a skeleton center therefor formed by a ronlinnous wrappingt4 of wire around the circular periphery ot the traine tubing. and formed of a single length of w.r perforated lathiu.;I carried by said center. anti a mass of concrete int'losinu saidfranie and center. the Center burin; a disbetl form in the concrete mass. and the iathing al parallel relatitn to one surt'at'e of the concrete mass.

zu. ln a building. a rectangular mar. '.tal frame formed of round tubing' and provided with diagonal braces of round rubin:` at its corners. a skeleton center therefor fornirti by a continuous wrapping of wire around the cir cular periphery of the frame tubing. and formed of a single length of wire perforated lathing carried by; said tenter,

sof concrete inclusinj.; said frame and center.

il. In a buildin;` a ret-tangular marginal frame formed o/t'nround tubinl.r and provided with diagonal braces ot' rountl rubin; at its corners, a skeleton center therefor formed by continuous wrappings of wire around the cirand a mass of concrete inclosinir said iraulo and' ter. anti a mass oi concrete inclosing said frame and center. thel center haring: a lished form in the mass oi` concrete.

i. lu a building. a rectangular of round tubing' and provided with diagonal round rubini.:4 at its corners. a skeleton renter therefor formed by a continuous wrapplnts; lof wire around tite ciu cular periphery of the frame tubing. and formed of a sintnarginal frame formed nie length of wire perforated latbing carried by said center. nuda mass of concrete lnclosin.;y said frameand center. the center baring a dished form in tite mass of cont-reto. and the lathbu; a parallel relation t0 one surface of the concrete Ina s.

2i. in a building'. a rectangular round tnbinf.I and provided with diagonal' braces of round tubing; at its corners. said braces having a smaller diameter than the frame tubing' and arranged in non central relation thereto. a skeleton center therefor formed bya continuous wrapping.r of wirearound the circular periphery ot the fratrie tubing. and formed. of a single lenn'th of wire perforated lathing carried by said center, and a mass of concrete inelosng said frame and center.

23. in a building. a rectangular' marginal frame formed by round tubing and provided with diagonal braces of round tubingl at its cirners. said braces having a smaller diameter than the frame tubiln,r and arranged in noncentral relation thereto, a skeleton Center therefor formed by continuous wrappings of wire wound upon said circular peripheryY of the fraxn'e tubing in right-annie relation. and formed of a single length of wire perforated lathing carried by said center. and a mass of conc-rete incloslng said frame and center.

26. ln a building. a rectangulaimarginal frame formed by round tubingl and provided with diagonal braces of round tubing at its corners, said braces having a smaller diameter than the frame tubing and arranged in noncentral relation thereto. a skeleton center therefor formed by a,continuou'fs` Awrapping of wire around the circular periphery of the frame tubing.`-a nd formed of a single marginal frame formed by length of wire perforated iathing carried by said ceuler,`

and a mass of concrete inciosing said frame and center, tbr center having; a dishcd form in the mass of concrete.

2T. In a building, a rectangular marginal frame formed by round tubing; and provided with diagonal braces of round tubing;l at its corners, said braces having a smaller diameter than the frame tubing and arranged in non central relation, thereto. a skeleton center therefor formed by a ctnitinuous wrapping of wire around the circular periphery of the frame tubing.and formed of a single length of wire perforated lathing carried by said center, and a mass of concrete inclosing said frame and center, the center having a dished form in the concrete mass, and the lat-him; a parallel relation to one surface of the concrete mass.

in a building, a rectangular marginal frame formed b v round tubing and provided with diagonal braces of round tubing at its corners, said braces having a smtxiler diameter than the frame tubing and arranged in noncentral relation thereto,.ti skeleton center therefor formed by a continuous wrapping of wire around the circular periphery of the frame tubing, and formed of a single length of wire perforated lathig carried by said center, short and long supporting llnkstforming the connection between the lathing and center to impose a dlshed form upon one of the` parts in relation to the other, and a mass of concrete iutrlosing the frame and center.

29. ln a` building, a series of rectangular marginal frames formed of round tubing and arranged in angular relation to each other, a continuons wrapping of wire enbraees of,

compasslng the series of frames and forming skeleton 16,0

.centers tllerefor and formed of a single length of wire, T

perforated lntlslng carried by said centers, nnd'n moss of concrete nclosing the frames and centers, i

31. in u. `oulldlng, a.' series of rectengnlar marginal4 frames formed of round tubing and arranged .in angular relationrtoench other, acontinuous wranping ol' wire eneoznpnssng tige series of trames and forming skeleton centers therefor and formed of a single length of wire, nV simplemente! winding of wire around each frame in right angle relation to the continuons winding aforesaid and forming part of the frame couler, and a muss of concrete inclosng the frames and centers.

In a building, a."'seres of rectangular marginal frames formed of round tubing und arranged ln singular 'relation to each othexgn continuelle wrapping ot wire eneompnsslng the series of frames and forming skeleton centers therefor and formed of n single length of wire. perforated lathing carried by said centers, und n mass of concrete lne-losing the frames and centers, the centers hatn lng n :lished form in the concrete moss. I

33. In a building, a series of rectangular marginal frames formed of round tubing andnrrnnged in angular relation to eachother, a continuous Wrapping of wire encompassing the series of frnnles and fol-mlm: skeleton centers therefor and formed of a single length ol' wire. perforated lathingcarrled by said centers, and a mass of concrete inclosing the frames and centers, the centers having a dished form in the concrete mass'nnd the lnthing a parallel relation to one surface of such concrete muss.V

34. In a building, nserles of recinnxuinr marginal frames formed of round tubing und arranged in angular relation to each other, n continuous Wrapping' of wire en compnssing the series of frames and forming: skeleton centers ther-eier and formed of u single length of Wire. perforated iathing carried by sold centers. short lignes forming the connections between the lathng und the cen ters, nucl n mass of concrete lncloslng the frames and centers.

35. ln a building, a series of rectangular marginal frames formed of round tubing and arranged ln angular relation to each other a continuous wrapping of wire encompassing the series of frames and forming skeleton eenY ters therefor and formed of a single length of wire, nerf@ rated bathing carried by said centers, n supplemental ding unal winding of wire around nach marginal frame und forming a portion of the center thereog. and u mess of conv crete int-losing the frames and centers;

36. ln a building. n series of rectangular marginal frames formed of round tubing and arranged in angular relation to verich other, a continuons Tanning erwre ennipassing the series nl frames and forming skeleton 'centers thereforV end formed of a single length of wire, perforatedlathing carried hy said centers, supplemental diagonal wlndi'ngs'o wire in right angle relation around each mar'gl'nel frame and forming a portion of the center thereof, and o mass of concrete lncloslng the frames and centers,

37. In Va building, o series of rectangular marginal frames formedo round tubing and arranged in angular relation to each other, two continuous wragjplngs of wires extending ln -oplgvoeitey directions and encompassing the series of frames toform skeleton centers 'therefor'. each of said trrapnlngs comprising a. single length of wire. and u :nass of concrete iueloslng the frames und centers,

3S. In u building. e. series of rectangular marginal frames formed of round tubing and arranged in angular relation to each other, two continuous wrapplngs of wires extending in opposite directions ond encompassing the series of frames to form skeleton centers therefor, each of said wrapplngs comprising a. single length of wire, perfo rut'ed lathlng carried .by said centers, and n mass of concrete int-losing the frames and centers.

3o. In n lmlldingvs. series orectanguar marginal tra mes formed ot round t'nhininndnlmgedfin angnl YVforming u portion of the center thereof. and

relation to euch other, two continuons wrealug's of wires "exienng: in opposite directions and encompassing the series of frames to form skeleton centers therefor, each of sold nrappiugs comprising n slnglelength of Wirela supplernentary winding of wire around euch trarne in rightnngle relation to said continuous windings and forming eert of the frame center, and a mass of concrete lnclosing the frames and centers.

4G. ln n building, a series of rectangular marginal frames formed of round tubing and arranged in angular relation 'to each other, two continuous wrapplngs o! wires extending in opposite directions and encompassing the series of trames to form skeleton centers therefor each of said wrapplngs comprising a single length of wire. perforated lathing carried by said centers. and a. muss of concrete inclosing the frames and centers, said centers having a :lished form in the concrete mass.

41. In e huildig, a series of rectanguler nlnrginsly frames formed o! round tubing and arranged in angular relation 'to each other, two continuonsV screenings of wires extending in opposite directions and encompassing the series of frames to form skeleton centers therefor each of said wrappings comprising s, single lengtn ot wire, perforated lntlling carried by said centers, and a mess of concrete inciosing the frames und centers, said centers hnvugn lished form in the Concrete mass andthe latir lng n. parallel relation to one surface ot such concrete 42. In a building, a series of rectangular marginal frames formed of round-tubing and arranged in angular relation in euch other, two continuous wrapplngs of wires extending in opposite directions und encompassing the series of trames to form skeleton centers therefor euch of said wronpings comprising a single length or wire, purfernted lnthlng carried by snl'd centers, short links forming the connections between the iathlng and the centers, and a mass o! concrete nclosing the frames und centers.

43. In u building. n series of rectangular marginal frames formed of round tubing und arranged in angular relation to euch other, two continuous wruppings of wires extending in opposite directions and encompassing the series of frames to form skeleton centers tilereor each of seid wrappings' comprising a single length of Wire, per fnruted lathing carried by said contarse supplemental dingonni Winding of wire around each marginal frame und a mass of concrete lnclosing the frames and celere.

ein a building, a series of rectangular marginal frames formed of round tubing and arrnged in angular relation to each other, two continuous Wrlppings of wires extending in opposite directions and encompassing the series of frames to form skeleton centers therefor each of said wrappings comprising o single length of wire, per- {ornted iathing carried by said centers, supplemental diagonal windings of wire in right angle relation on each mnrginnl frame and forming a portion ot the center thereof, and n mess o concrete ncloslhg the trames and centers.

45. In a building, a rectangular marginal frame formed of duplicate sections of round tublng arranged in nerallel und adjacent relation. a wrapping ot wire wound mound the circular periphery o! the tubing to form e skeleton center and formed ot uV ingle-length of wire, and a mass ot concrete' inclosing said treme and center.

` 46. In a building, a rectangular marginal frame formed of duplicate sectios of round tubing arranged in parallel and adjacent relation, wrapplngs of wire wound around. the circular nerlphery of the tubing in right angle relation inform a skeleton center and formed of s. single lengt?` o; wire, and s mass of concrete incioslng said frame and center. Y Y

i in u building, a recthnglllar marginal frame formed or' duplicate sections of round tubing arranged in parallel nnd'udjacent relation, a Wrapping of wire wound around the circular periphery of the tubing to form a skeleton center und formed of a single length of wire, and a mass of concrete incloslng said frame and center, said center having a :lished form in the concrete mass.

48,7711; a building, a rectangular marginal frame formed otd'upleate sections ,of-V rnnnd tuning arranged ln nd- 

